| 571 | Leveling Jack | Company Product |
| 572 | Leveling Rod | Company Product |
| 573 | Leveling Valve | Company Product |
| 574 | Levelling | Company Product |
| 575 | Levelling Agents | Company Product |
| 576 | Levelling Base | Company Product |
| 577 | Levelling Pliers | Company Product |
| 578 | Levelling System | Company Product |
| 579 | Levelling Wedges | Company Product |
| 580 | Levels | Company Product |
| 581 | Lever | Company Product |
| 582 | Lever Block | Company Product |
| 583 | Lever Blocks | Company Product |
| 584 | Lever Chain Hoist | Company Product |
| 585 | Lever Handles | Company Product |
| 586 | Lever Hoist | Company Product |
| 587 | Lever Hoists | Company Product |
| 588 | Lever Lock | Company Product |
| 589 | Lever Tumbler Mortise Lock With Lever Handle | Company Product |
| 590 | Lever Tumbler Mortise Locks | Company Product |
| 591 | Lever Tumbler Rim Locks | Company Product |
| 592 | Lever Tumbler Rim Locks With Lever Handle | Company Product |
| 593 | Lexium | Company Product |
| 594 | Lf | Company Product |
| 595 | Lfmc | Company Product |
| 596 | Lg-100d | Company Product |
| 597 | Lg-70d | Company Product |
| 598 | Library Equipment & Supplies | Company Product |
| 599 | Library Research | Company Product |
| 600 | Library Shelving System | Company Product |